diff --git a/src/ASM/LR/ASMu2Dmx.C b/src/ASM/LR/ASMu2Dmx.C
index 4b6ce18d..d8acaa6b 100644
--- a/src/ASM/LR/ASMu2Dmx.C
+++ b/src/ASM/LR/ASMu2Dmx.C
@@ -240,6 +240,9 @@ bool ASMu2Dmx::generateFEMTopology ()
         projBasis = m_basis[2-ASMmxBase::geoBasis];
       refBasis = projBasis;
     }
+
+    delete tensorspline;
+    tensorspline = nullptr;
   }
   projBasis->generateIDs();
   refBasis->generateIDs();
diff --git a/src/ASM/LR/ASMu3Dmx.C b/src/ASM/LR/ASMu3Dmx.C
index c6c603b8..5e683d69 100644
--- a/src/ASM/LR/ASMu3Dmx.C
+++ b/src/ASM/LR/ASMu3Dmx.C
@@ -224,6 +224,9 @@ bool ASMu3Dmx::generateFEMTopology ()
         projBasis = m_basis[2-ASMmxBase::geoBasis];
       refBasis = projBasis;
     }
+
+    delete tensorspline;
+    tensorspline = nullptr;
   }
   lrspline = m_basis[geoBasis-1];
   projBasis->generateIDs();